[vtkusers] Store multiple versions of an array in a vtp file

Tue May 5 16:45:12 EDT 2009

Hi David,
  I posted a similar query last week: ie how to use vt* xml files to hold
data (efficiently) with constant geometry and varying data values.
Please keep me posted if you get any leads on this.
Should this question be posted to the Paraview mail list, which I am not
(yet) a member of?)

Found these from a quick search on Paraview list,

 http://markmail.org/message/lsyjxkf5vvxv2zuk
 http://markmail.org/message/zoljls7eadz3sa6c
      seem to be talking about modifying code to get desired bahaviour...

http://markmail.org/thread/vogxdltk3sqcsjx6
      suggestion to use Ensight files for holding data

  regards, Dave P

             David Doria                                                   
             <daviddoria at gmail                                             
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             06/05/2009 04:18          Re: [vtkusers] Store multiple       
                                       versions of an array in a vtp file  

On Tue, May 5, 2009 at 11:38 AM, Eric E. Monson <emonson at cs.duke.edu.>
wrote:
  Hey David,

  I think the easiest way would be to either write a separate vtp file for
  each iteration (and then write a pvd file to treat them as a time series
  for animating in ParaView), or else change your data file format.

  I've never used it, but evidently the Ensight Gold format allows separate
  files for the mesh and the data associated with it. For my work I use
  XDMF (http://xdmf.org), which would allow you to write one copy of the
  geometry and the scalars for each iteration to a single HDF5 file, and
  then the XMF file that goes with it would describe a time series which
  points to the one copy of the geometry on each "time" step along with the
  new cluster array scalars.

  Otherwise, as a long-shot, there was some talk on the ParaView mailing
  list last year saying that vtu files could actually hold multiple time
  steps, and that someone had patches which would allow pvd files to be
  read in using "shared" geometry, but I'm not sure what the status of that
  is...

  http://www.vtk.org/pipermail/vtkusers/2008-February/094463.html

  Good luck,
  -Eric

  ------------------------------------------------------
  Eric E Monson
  Duke Visualization Technology Group

Eric -
I already have 10,000 (ok, maybe I'm exaggerating a little bit :) ) file
formats to convert from/to, so it'd be nice to keep everything in vt*. Does
anyone know what happened to the patches Eric is talking about (either
multiple timesteps in a vtu or "shared" geometry?) That thread seemed to
die with no resolution.

Thanks,

David
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